Touch control structure, display panel, display apparatus, and method of fabricating touch control structure

ABSTRACT

A touch control structure is provided. The touch control structure includes a plurality of first touch electrodes arranged in a plurality of rows and a plurality of second touch electrodes arranged in a plurality of columns. The plurality of rows of the plurality of first touch electrodes respectively extend to a first edge of the touch control structure. A respective one of a plurality of edge-adjacent electrode blocks directly adjacent to multiple first edge electrode blocks respectively from a plurality of rows of the plurality of first touch electrodes includes a truncated protrusion. An edge of the truncated protrusion is spaced apart from the first edge by a gap. An average width of the truncated protrusion along a direction perpendicular to the first direction is less than an average width of a respective one of the multiple non-truncated protrusions along the direction perpendicular to the first direction.

CROSS-REFERENCE TO RELATED APPLICATION

This application is a national stage application under 35 U.S.C. § 371of International Application No. PCT/CN2020/107309, filed Aug. 6, 2020,the contents of which are incorporated by reference in the entirety.

TECHNICAL FIELD

The present invention relates to display technology, more particularly,to a touch control structure, a display panel, a display apparatus, anda method of fabricating a touch control structure.

BACKGROUND

Various types of touch panels have been developed. Examples of touchpanels include one-glass-solution (OGS) touch panels, on-cell touchpanels, and in-cell touch panels. The on-cell touch panels provide hightouch control accuracy. The on-cell touch panels can be classified intosingle-layer-on-cell (SLOC) touch panels and multi-layer-on-cell (MLOC)touch panels. In particular, multiple point touch control can beachieved in the MLOC touch panels with superior touch control accuracyand blanking effects.

SUMMARY

In one aspect, the present disclosure provides a touch controlstructure, comprising a plurality of first touch electrodes arranged ina plurality of rows and a plurality of second touch electrodes arrangedin a plurality of columns; wherein the plurality of rows of theplurality of first touch electrodes respectively extend to a first edgeof the touch control structure; a respective row of the plurality ofrows comprises a plurality of non-edge first electrode blocks and afirst edge electrode block, the first edge electrode block being alongthe first edge; the plurality of non-edge first electrode blocks have asame shape; electrode blocks of the plurality of first touch electrodesand the plurality of second touch electrodes are in a same layer, andrespectively comprises a main portion and protrusion portions; theplurality of column of the plurality of second touch electrodes comprisea plurality of non-edge columns and an edge-adjacent column, theedge-adjacent column being directly adjacent to multiple first edgeelectrode blocks respectively from the plurality of rows of theplurality of first touch electrodes; the edge-adjacent column comprisesa plurality of edge-adjacent electrode blocks electrically connected; arespective one of the plurality of edge-adjacent electrode blockscomprises a truncated protrusion, and multiple non-truncated protrusion;an edge of the truncated protrusion is spaced apart from the first edgeby a gap; a gap part of the first edge electrode block is in the gap;the truncated protrusion extends from a respective main portion of therespective one of the plurality of edge-adjacent electrode blocks alonga first direction; and an average width of the truncated protrusionalong a direction perpendicular to the first direction is less than anaverage width of a respective one of the multiple non-truncatedprotrusions along the direction perpendicular to the first direction.

Optionally, a width along a direction perpendicular to the firstdirection of at least a portion of the truncated protrusion graduallydecrease along the first direction.

Optionally, the truncated protrusion has a first side and a second side;the second side is closer to the first edge than the first side; thefirst side extends along the first direction; the second side is acurved side; and a distance between the first side and the second sidegradually decreases along the first direction.

Optionally, the curved side of the second side has a first terminal anda second terminal; the second terminal connects with a terminal of thefirst side; a distance along the first direction between the firstterminal and a boundary between the truncated protrusion and therespective main portion is 30% to 70% of a length of the truncatedprotrusion along the first direction.

Optionally, the curved side has a quasi-arch shape.

Optionally, the curved side has an undulating shape.

Optionally, the electrode blocks of the plurality of first touchelectrodes and the plurality of second touch electrodes are respectivelyhexagonal mesh electrode blocks; a respective first electrode block anda respective second electrode block adjacent to each other are insulatedfrom each other by line breaks in mesh lines; the first side and thesecond side are respectively formed by virtually connected line breaksof the truncated protrusion.

Optionally, a respective one of the line breaks is a break in middle ofa mesh line.

Optionally, the gap part in the gap comprises at least one mesh along arow direction.

Optionally, the at least one mesh comprises a hexagonal mesh.

Optionally, the first edge electrode block comprises a first main edgeportion and a first side edge portion respectively along the first edge;and the gap part of the first side edge portion in the gap is betweenthe first main edge portion and an edge protrusion of the first edgeelectrode block, and electrically connected to the first main edgeportion and the edge protrusion of the first edge electrode block.

Optionally, second electrode blocks of the plurality of non-edge columnsand first electrode blocks other than the multiple first edge electrodeblocks respectively from the plurality of rows of the plurality of firsttouch electrodes have a substantially same shape and dimension; and theaverage width of the truncated protrusion is less than an average widthof any one of protrusions in the second electrode blocks of theplurality of non-edge columns or in the first electrode blocks otherthan the multiple first edge electrode blocks respectively from theplurality of rows of the plurality of first touch electrodes.

Optionally, the touch control structure further comprises a plurality oftouch electrode bridges and an insulating layer between the plurality oftouch electrode bridges, and the electrode blocks of the plurality offirst touch electrodes and the plurality of second touch electrodes; theplurality of touch electrode bridges respectively extend through vias inthe insulating layer to respectively connect adjacent second electrodeblocks in a respective column of the plurality of columns of theplurality of second touch electrodes.

Optionally, a respective one of plurality of non-edge first electrodeblocks comprises a first main portion and a first side portionrespectively along a first virtual line parallel to the first edge;along the first virtual line, boundaries of the first main portion andthe first side portion are disconnected from each other; the first edgeelectrode block comprises a first main edge portion and a first sideedge portion respectively along the first edge; the first main edgeportion and the first side edge portion are directly physicallyconnected to each other; the first main edge portion and the first mainportion have a same shape; external electrode edges of the first mainedge portion other than a portion along the first edge are identical toexternal electrode edges of the first main portion; and the first sideedge portion and the first side portion have at least partiallydifferent shapes and at least partially different external contours.

Optionally, the first side edge portion comprises a first outersub-portion and a first bridge sub-portion respectively along the firstedge, the first bridge sub-portion directly physically connecting thefirst outer sub-portion to the first main edge portion; the first sideportion comprises a first sub-portion and a second sub-portion along thefirst virtual line; external electrode edges of the first outersub-portion other than a portion along the first edge are identical toexternal electrode edges of the first sub-portion; the first sub-portionand the first outer sub-portion have a same shape; the first bridgesub-portion and the second sub-portion have different shapes anddifferent external contours; and along the first virtual line,boundaries of the second sub-portion and the first main portion aredisconnected from each other.

Optionally, the first main portion and the first main edge portion havea first translational symmetry; the first outer sub-portion and thefirst sub-portion have a second translational symmetry; and the firsttranslational symmetry and the second translational symmetry are thesame.

Optionally, the first side portion is at least a portion of a protrusionof the respective one of plurality of non-edge first electrode blocks;and the first side edge portion is a protrusion of the first edgeelectrode block.

Optionally, the first edge electrode block further comprises a secondside edge portion; the first side edge portion, the first main edgeportion, and second side edge portion are sequentially arranged alongthe first edge; the respective one of plurality of non-edge firstelectrode blocks further comprises a second side portion; the first sideportion, the first main portion, and the second side portion aresequentially arranged along the first virtual line; along the firstvirtual line, boundaries of the first main portion and the second sideportion are disconnected from each other; the first main edge portionand the second side edge portion are directly physically connected toeach other; and the second side edge portion and the second side portionhave at least partially different shapes and at least partiallydifferent external contours.

Optionally, the second side edge portion comprises a second outersub-portion and a second bridge sub-portion respectively along the firstedge, the second bridge sub-portion directly physically connecting thesecond outer sub-portion to the first main edge portion; the second sideportion comprises a third sub-portion and a fourth sub-portion along thefirst virtual line; external electrode edges of the second outersub-portion other than a portion along the first edge are identical toexternal electrode edges of the third sub-portion; the third sub-portionand the second outer sub-portion have a same shape; the second bridgesub-portion and the fourth sub-portion have different shapes anddifferent external contours; and along the first virtual line,boundaries of the fourth sub-portion and the first main portion aredisconnected from each other.

Optionally, the first main portion and the first main edge portion havea first translational symmetry; the first outer sub-portion and thefirst sub-portion have a second translational symmetry; the second outersub-portion and the third sub-portion have a third translationalsymmetry; and the first translational symmetry, the second translationalsymmetry, and the third translational symmetry are the same.

Optionally, the first side portion and the second side portion arerespectively at least portions of protrusions of the respective one ofplurality of non-edge first electrode blocks; and the first side edgeportion and the second side edge portion are respectively protrusions ofthe first edge electrode block.

Optionally, each of the multiple first edge electrode blocks is alongthe first edge; a respective one of the plurality of non-edge columnscomprises a plurality of non-edge second electrode blocks electricallyconnected; and external electrode edges of a respective one of theplurality of edge-adjacent electrode blocks are identical to externalelectrode edges of a respective one of the plurality of non-edge secondelectrode blocks except for a first portion directly adjacent to thefirst side edge portion in an adjacent row of the plurality of rows.

In another aspect, the present disclosure provides a display apparatus,comprising the touch control structure described herein or fabricated bya method described herein, a display panel, and an integrated circuitconnected to the display panel.

BRIEF DESCRIPTION OF THE FIGURES

The following drawings are merely examples for illustrative purposesaccording to various disclosed embodiments and are not intended to limitthe scope of the present invention.

FIG. 1 is a schematic diagram illustrating the structure of a touchcontrol structure in some embodiments according to the presentdisclosure.

FIG. 2 is a zoom-in view of a first zoom-in region in FIG. 1 .

FIG. 3 is a schematic diagram illustrating the structure of a respectiverow of the first touch electrodes in a first zoom-in region in FIG. 1 .

FIG. 4 illustrates boundaries of respective portions of electrodes inFIG. 3 .

FIG. 5 illustrates external electrode edges of respective portions ofelectrodes in FIG. 3 .

FIG. 6 is a schematic diagram illustrating boundaries of respectiveportions of electrodes in FIG. 3 .

FIG. 7 is a schematic diagram illustrating the structure of a touchcontrol structure in some embodiments according to the presentdisclosure.

FIG. 8 is a zoom-in view of a second zoom-in region in FIG. 1 .

FIG. 9 is a schematic diagram illustrating the structure of a touchcontrol structure in some embodiments according to the presentdisclosure.

FIG. 10 is a zoom-in view of a third zoom-in region in FIG. 9 .

FIG. 11 is a schematic diagram illustrating the structure of arespective row of the first touch electrodes in a third zoom-in regionin FIG. 9 .

FIG. 12 illustrates boundaries of respective portions of electrodes inFIG. 11 .

FIG. 13 illustrates external electrode edges of respective portions ofelectrodes in FIG. 11 .

FIG. 14 is a partial view of a region of a touch control structure alonga first edge in some embodiments according to the present disclosure.

FIG. 15 is a zoom-in view of a fourth zoom-in region in FIG. 14 .

FIG. 16 is a schematic diagram illustrating a truncated protrusion insome embodiments according to the present disclosure.

FIG. 17 illustrates mesh line breaks along edges of a truncated portionin some embodiments according to the present disclosure.

FIG. 18 illustrates mesh line breaks along edges of a truncated portionin some embodiments according to the present disclosure.

FIG. 19 illustrates a first edge electrode block in some embodimentsaccording to the present disclosure.

FIG. 20 is a zoom-in view of a fourth zoom-in region in FIG. 14 .

FIG. 21 is a schematic diagram illustrating a truncated protrusion insome embodiments according to the present disclosure.

FIG. 22 illustrates mesh line breaks along edges of a truncated portionin some embodiments according to the present disclosure.

FIG. 23A is a plan view of a display panel in some embodiments accordingto the present disclosure.

FIG. 23B is a cross-sectional view along an A-A′ line in FIG. 23A.

FIG. 23C is a cross-sectional view along a B-B′ line in FIG. 23A.

FIG. 24 is a cross sectional view of a display panel in some embodimentsaccording to the present disclosure.

DETAILED DESCRIPTION

The disclosure will now be described more specifically with reference tothe following embodiments. It is to be noted that the followingdescriptions of some embodiments are presented herein for purpose ofillustration and description only. It is not intended to be exhaustiveor to be limited to the precise form disclosed.

The present disclosure provides, inter alia, a touch control structure,a display panel, a display apparatus, and a method of fabricating atouch control structure that substantially obviate one or more of theproblems due to limitations and disadvantages of the related art. In oneaspect, the present disclosure provides a touch control structure. Insome embodiments, the touch control structure includes a plurality offirst touch electrodes arranged in a plurality of rows and a pluralityof second touch electrodes arranged in a plurality of columns. In someembodiments, the plurality of rows of the plurality of first touchelectrodes respectively extend to a first edge of the touch controlstructure. A respective row of the plurality of rows comprises aplurality of non-edge first electrode blocks and a first edge electrodeblock, the first edge electrode block being along the first edge.Optionally, the plurality of non-edge first electrode blocks have a sameshape; the first edge electrode block comprises a first main edgeportion and a first side edge portion respectively along the first edge.Optionally, a respective one of plurality of non-edge first electrodeblocks comprises a first main portion and a first side portionrespectively along a first virtual line parallel to the first edge.Optionally, along the first virtual line, boundaries of the first mainportion and the first side portion are disconnected from each other.Optionally, the first main edge portion and the first side edge portionare directly physically connected to each other. Optionally, the firstmain edge portion and the first main portion have a same shape.Optionally, external electrode edges of the first main edge portionother than a portion along the first edge are identical to externalelectrode edges of the first main portion. Optionally, the first sideedge portion and the first side portion have at least partiallydifferent shapes and at least partially different external contours.

FIG. 1 is a schematic diagram illustrating the structure of a touchcontrol structure in some embodiments according to the presentdisclosure. Referring to FIG. 1 , the touch control structure in someembodiments includes a plurality of first touch electrodes TE1 and aplurality of second touch electrodes TE2. The plurality of first touchelectrodes TE1 are arranged in a plurality of rows, each of theplurality of rows is a respective one of the plurality of first touchelectrodes TE1. Adjacent rows of the plurality of rows are isolated fromeach other. The plurality of second touch electrodes TE2 arranged in aplurality of columns, each of the plurality of columns is a respectiveone of the plurality of second touch electrodes TE2. Adjacent columns ofthe plurality of columns are isolated from each other. Optionally, thetouch control structure is a mutual capacitance type touch controlstructure. Optionally, the plurality of first touch electrodes TE1 are aplurality of touch scanning electrodes, and the plurality of secondtouch electrodes TE2 are a plurality of touch sensing electrodes.Optionally, the plurality of first touch electrodes TE1 are a pluralityof touch sensing electrodes, and the plurality of second touchelectrodes TE2 are a plurality of touch scanning electrodes. The touchelectrodes of the touch control structure extend to a first edge Ed1,beyond which the touch control region ends.

In some embodiments, the plurality of rows of the plurality of firsttouch electrodes TE1 respectively extend to the first edge Ed1 of thetouch control structure. FIG. 2 is a zoom-in view of a first zoom-inregion in FIG. 1 . FIG. 3 is a schematic diagram illustrating thestructure of a respective row of the first touch electrodes in a firstzoom-in region in FIG. 1 . Referring to FIG. 1 to FIG. 3 , a respectiverow of the plurality of rows includes a plurality of non-edge firstelectrode blocks NEB1 and a first edge electrode block EB1. Optionally,the first edge electrode block EB1 is along the first edge Ed1.Optionally, the plurality of non-edge first electrode blocks NEB1 have asame shape.

Referring to FIG. 3 , the first edge electrode block EB1 includes afirst main edge portion Me1 and a first side edge portion Se1respectively along the first edge Ed1; a respective one of plurality ofnon-edge first electrode blocks NEB1 includes a first main portion Mp1and a first side portion Sp1 respectively along a first virtual line Vl1parallel to the first edge Ed1. In one example, the first main edgeportion Me1 corresponds to the first main portion Mp1, and the firstside edge portion Se1 corresponds to the first side portion Sp1.

FIG. 4 illustrates boundaries of respective portions of electrodes inFIG. 3 . Referring to FIG. 4 , along the first virtual line Vl1,boundaries of the first main portion Mp1 and the first side portion Sp1are disconnected from each other. Along the first edge Ed1, boundariesof the first side edge portion Se1 and the first main edge portion Me1,however, are connected to each other. As shown in FIG. 2 and FIG. 3 ,the first main edge portion Me1 and the first side edge portion Se1 aredirectly physically connected to each other. Optionally, the first mainedge portion Me1 and the first main portion Mp1 have a same shape.

FIG. 5 illustrates external electrode edges of respective portions ofelectrodes in FIG. 3 . External electrode edges refer to actual physicaledges in an electrode block. For example, the first main portion Mp1lacks external electrode edge along the first virtual line Vl1 in FIG. 4, because first main portion Mp1 lacks actual physical edges in anelectrode block along the first virtual line Vl1. Referring to FIG. 5 ,in some embodiments, external electrode edges of the first main edgeportion Me1 other than a portion along the first edge Ed1 are identicalto external electrode edges of the first main portion Mp1.

Referring to FIG. 2 to FIG. 5 , the first side edge portion Se1 and thefirst side portion Sp1 have at least partially different shapes and atleast partially different external contours. FIG. 6 is a schematicdiagram illustrating boundaries of respective portions of electrodes inFIG. 3 . Referring to FIG. 6 , in some embodiments, the first side edgeportion Se1 includes a first outer sub-portion Se1-1 and a first bridgesub-portion Se1-2 respectively along the first edge Ed1. Referring toFIG. 6 and FIG. 4 , the first bridge sub-portion Se1-2 directlyphysically connects the first outer sub-portion Se1-1 to the first mainedge portion Me1. The first side portion Sp1 includes a firstsub-portion Sp1-1 and a second sub-portion Sp1-2 along the first virtualline Vl1. Referring to FIG. 6 and FIG. 5 , external electrode edges ofthe first outer sub-portion Se1-1 other than a portion along the firstedge Ed1 are identical to external electrode edges of the firstsub-portion Sp1-1. The first sub-portion Sp1-1 and the first outersub-portion Se1-1 have a same shape. The first bridge sub-portion Se1-2and the second sub-portion Sp1-2 have different shapes and differentexternal contours. Referring to FIG. 6 and FIG. 4 , along the firstvirtual line Vl1, boundaries of the second sub-portion Sp1-2 and thefirst main portion Sp1 are disconnected from each other.

As shown in FIG. 1 to FIG. 6 , in some embodiments, the first mainportion Sp1 and the first main edge portion Me1 have a firsttranslational symmetry, and the first outer sub-portion Se1-1 and thefirst sub-portion Sp1-1 have a second translational symmetry.Optionally, the first translational symmetry and the secondtranslational symmetry are the same.

As shown in FIG. 3 , in some embodiments, the first side portion Sp1 isat least a portion of a protrusion of the respective one of plurality ofnon-edge first electrode blocks NEB1; the first side edge portion Se1 isa protrusion of the first edge electrode block EB1.

If the touch control structure adopts a uniform design throughout theentire structure, along the edge of the touch control structure, someelectrode blocks may not be connected. FIG. 7 is a schematic diagramillustrating the structure of a touch control structure in someembodiments according to the present disclosure. Referring to FIG. 7 ,along the first edge Ed1 of the touch control structure, the touchcontrol structure further includes residual electrode blocks RBa and RBbrespectively disconnected from the first edge electrode block EB1. Thepresence of residual electrode blocks such as the residual electrodeblocks RBa and RBb in the touch control structure results in a reducedadjacent electrode interface between the plurality of first touchelectrodes and the plurality of second touch electrodes along edges suchas the first edge Ed1. If not compensated, the reduced adjacentelectrode interface results in a reduced mutual capacitance along theseedges, leading to non-uniformity of mutual capacitance and touch controlperformance along these edges. The first edge Ed1 may be any edge of thetouch control structure, for example, an edge along a lateral side ofthe touch control structure, an edge along a corner of the touch controlstructure, or an edge along an internal window region of the touchcontrol structure. The internal window region may be a region in which ahole is punched through the touch control structure.

To enhance mutual capacitance uniformity and touch performancethroughout the touch control structure, the first edge electrode blockEB1 in the present disclosure 0 is formed to have a different structurefrom the plurality of non-edge first electrode blocks NEB1, therebypreventing existence of the residual electrode blocks along the edge. Asubstantially more uniform mutual capacitance and touch controlperformance along the edges can be achieved in the present touch controlstructure.

Referring to FIG. 1 to FIG. 6 again, in some embodiments, the first edgeelectrode block EB1 further includes a second side edge portion Se2. Thefirst side edge portion Se1, the first main edge portion EB1, and secondside edge portion Se2 are sequentially arranged along the first edgeEd1. Similarly, the respective one of plurality of non-edge firstelectrode blocks NEB1 further includes a second side portion Sp2. Thefirst side portion Sp1, the first main portion Mp1, and the second sideportion Sp2 are sequentially arranged along the first virtual line Vl1.Along the first virtual line Vl1, boundaries of the first main portionMp1 and the first side portion Sp1 are disconnected from each other, andboundaries of the first main portion Mp1 and the second side portion Sp2are disconnected from each other. The first main edge portion Me1 andthe first side edge portion Se1 are directly physically connected toeach other; and the first main edge portion Me1 and the second side edgeportion Se2 are directly physically connected to each other. The firstside edge portion Se1 and the first side portion Sp1 have at leastpartially different shapes and at least partially different externalcontours; and the second side edge portion Se2 and the second sideportion Sp2 have at least partially different shapes and at leastpartially different external contours.

Referring to FIG. 6 , in some embodiments, the first side edge portionSe1 includes a first outer sub-portion Se1-1 and a first bridgesub-portion Se1-2 respectively along the first edge Ed1; and the secondside edge portion Se2 includes a second outer sub-portion Se2-1 and asecond bridge sub-portion Se2-2 respectively along the first edge Ed1.

Referring to FIG. 6 and FIG. 4 , the first bridge sub-portion Se1-2directly physically connects the first outer sub-portion Se1-1 to thefirst main edge portion Me1; and the second bridge sub-portion Se2-2directly physically connecting the second outer sub-portion Se2-1 to thefirst main edge portion Me1. The first side portion Sp1 includes a firstsub-portion Sp1-1 and a second sub-portion Sp1-2 along the first virtualline Vl1; and the second side portion Sp2 includes a third sub-portionSp2-1 and a fourth sub-portion Sp2-2 along the first virtual line Vl1.Referring to FIG. 6 and FIG. 5 , external electrode edges of the firstouter sub-portion Se1-1 other than a portion along the first edge Ed1are identical to external electrode edges of the first sub-portionSp1-1; and external electrode edges of the second outer sub-portionSe2-1 other than a portion along the first edge Ed1 are identical toexternal electrode edges of the third sub-portion Sp2-1. The firstsub-portion Sp1-1 and the first outer sub-portion Se1-1 have a sameshape; and the third sub-portion Sp2-1 and the second outer sub-portionSe2-1 have a same shape. The first bridge sub-portion Se1-2 and thesecond sub-portion Sp1-2 have different shapes and different externalcontours; and the second bridge sub-portion Se2-2 and the fourthsub-portion Sp2-2 have different shapes and different external contours.Referring to FIG. 6 and FIG. 4 , along the first virtual line Vl1,boundaries of the second sub-portion Sp1-2 and the first main portionSp1 are disconnected from each other; and along the first virtual line,boundaries of the fourth sub-portion Sp2-2 the first main portion Sp1are disconnected from each other.

As shown in FIG. 1 to FIG. 6 , in some embodiments, the first mainportion Sp1 and the first main edge portion Me1 have a firsttranslational symmetry, the first outer sub-portion Se1-1 and the firstsub-portion Sp1-1 have a second translational symmetry, and the secondouter sub-portion Se2-1 and the third sub-portion Sp2-1 have a thirdtranslational symmetry. Optionally, the first translational symmetry,the second translational symmetry, and the third translational symmetryare the same.

As shown in FIG. 3 , in some embodiments, the first side portion Sp1 andthe second side portion Sp2 are respectively at least portions ofprotrusions of the respective one of plurality of non-edge firstelectrode blocks NEB1 (e.g., upper and lower protrusions of therespective one of plurality of non-edge first electrode blocks NEB1 inFIG. 3 ); the first side edge portion Se1 and the second side edgeportion Se2 are respectively protrusions of the first edge electrodeblock EB1 (e.g., upper and lower protrusions of the first edge electrodeblock EB1 in FIG. 3 ).

In some embodiments, and referring to FIG. 1 again, the plurality ofcolumn of the plurality of second touch electrodes TE2 include aplurality of non-edge columns Cne and an edge-adjacent column Cea, theedge-adjacent column Cea being directly adjacent to multiple first edgeelectrode blocks respectively from the plurality of rows of theplurality of first touch electrodes TE1. The multiple first edgeelectrode blocks include the first edge electrode block EB1 as shown inFIG. 1 . Each of the multiple first edge electrode blocks (e.g., thefirst edge electrode block EB1) is along the first edge Ed1. As shown inFIG. 1 , the edge-adjacent column Cea includes a plurality ofedge-adjacent electrode blocks EAB electrically connected together; anda respective one of the plurality of non-edge columns Cne includes aplurality of non-edge second electrode blocks NEB2 electricallyconnected together.

FIG. 8 is a zoom-in view of a second zoom-in region in FIG. 1 .Referring to FIG. 8 , external electrode edges of a respective one ofthe plurality of edge-adjacent electrode blocks EAB are identical toexternal electrode edges of a respective one of the plurality ofnon-edge second electrode blocks NEB2 except for a first portion P1directly adjacent to the first side edge portion Se1 in an adjacent rowof the plurality of rows. Optionally, the first portion P1 is aprotrusion of the respective one of the plurality of edge-adjacentelectrode blocks NEB2. As compared to other protrusions of therespective one of the plurality of edge-adjacent electrode blocks NEB2,the first portion P1 is shortened.

In some embodiments, external electrode edges of a respective one of theplurality of edge-adjacent electrode blocks EAB are identical toexternal electrode edges of a respective one of the plurality ofnon-edge second electrode blocks NEB2 except for a first portion P1directly adjacent to the first side edge portion Se1 in an adjacent rowof the plurality of rows and a second portion P2 directly adjacent tothe second side edge portion Se2 in a second adjacent row of theplurality of rows. Optionally, the first portion P1 and the secondportion P2 are respectively protrusions of the respective one of theplurality of edge-adjacent electrode blocks NEB2. As compared to otherprotrusions of the respective one of the plurality of edge-adjacentelectrode blocks NEB2, the first portion P1 is shortened, and the secondportion P2 is shortened.

Referring to FIG. 1 , in some embodiments, the touch control structurefurther includes a plurality of first touch signal lines SL1respectively connected to the plurality of rows; and a plurality ofsecond touch signal lines SL2 respectively connected to the plurality ofcolumns. As shown in FIG. 1 , in some embodiments, on the left side, theplurality of rows of the plurality of first touch electrodes TE1respectively extend to a second edge Ed2 of the touch control structure;on the right side, the plurality of rows of the plurality of first touchelectrodes TE1 respectively extend to the first edge Ed1 of the touchcontrol structure. Optionally, the second edge Ed2 is opposite to thefirst edge Ed1. The plurality of first touch signal lines SL1 in someembodiments respectively connect to electrode blocks of the plurality offirst touch electrodes TE1 respectively in the plurality of rows on theleft side, e.g., along the second edge Ed2. However, the plurality offirst touch signal lines SL1 are not directly connect to electrodeblocks of the plurality of first touch electrodes TE1 respectively inthe plurality of rows on the right side, e.g., along the first edge Ed1.

In some embodiments, the first edge electrode block EB1 is indirectlyelectrically connected to a respective one of the plurality of firsttouch signal lines SL1 through at least the plurality of non-edge firstelectrode blocks NEB1. However, the first edge electrode block EB1 isnot directly connected to any of the plurality of first touch signallines SL1 or the plurality of second touch signal lines SL2.

FIG. 9 is a schematic diagram illustrating the structure of a touchcontrol structure in some embodiments according to the presentdisclosure. FIG. 10 is a zoom-in view of a third zoom-in region in FIG.9 . Referring to FIG. 9 and FIG. 10 , in some embodiments, therespective row of the plurality of rows further includes a second edgeelectrode block EB2 and a first residual electrode block RB1. The secondedge electrode block EB2 and the first residual electrode block RB1 arealong the second edge Ed2. Optionally, the second edge Ed2 is an edgeopposite to the first edge Ed1. Optionally, the respective row includesthe second edge electrode block EB2 and the first residual electrodeblock RB1 along the second edge Ed2 (on the left side), the plurality ofnon-edge electrode blocks NEB in the middle of the row, and the firstedge electrode block EB1 along the first edge Ed1 (on the right side).The plurality of non-edge electrode blocks NEB in the middle connect thefirst edge electrode block EB1 and the second edge electrode block EB2together.

Referring to FIG. 9 and FIG. 10 , in some embodiments, the second edgeelectrode block EB2 and the first residual electrode block RB1 aredirectly connected to the respective one of the plurality of first touchsignal lines SL1, while the first residual electrode block RB1 isisolated from electrode blocks of any adjacent row of the plurality ofrows.

Referring to FIG. 10 , in some embodiments, the respective one of theplurality of first touch signal lines SL1 includes a first branch lineBl1 and a second branch line Bl2 electrically connected in parallel(e.g., connected to a main line of the respective one of the pluralityof first touch signal lines SL1). The second edge electrode block EB2 isdirectly connected to the first branch line Bl1, the first residualelectrode block RB1 is directly connected to the second branch line Bl2.

Referring to FIG. 9 , the first residual electrode block RB1 is isolatedfrom electrode blocks of any adjacent row of the plurality of rows. FIG.11 is a schematic diagram illustrating the structure of a respective rowof the first touch electrodes in a third zoom-in region in FIG. 9 .Referring to FIG. 11 , the first residual electrode block RB1 is alsoisolated from the second edge electrode block EB2. The first residualelectrode block RB1 and the second edge electrode block EB2 aredisconnected from each other because they are present along the secondedge Ed2 of the touch control structure. In a respective one of theplurality of non-edge first electrode blocks NEB1 that is not along thesecond edge Ed2 or the first edge Ed1, protrusions of the electrodeblock are connected to a center portion. In one example, the second edgeelectrode block EB2 corresponds to a second main portion Mp2 of therespective one of the plurality of non-edge first electrode blocks NEB1,and the first residual electrode block RB1 corresponds to a third sideportion Sp3 of the respective one of the plurality of non-edge firstelectrode blocks NEB1.

In some embodiments, the respective one of plurality of non-edge firstelectrode blocks NEB1 includes a second main portion Mp2 and a thirdside portion Sp3 respectively along a second virtual line Vl2 parallelto the second edge Ed2. Along the second virtual line Vl2, boundaries ofthe second main portion Mp2 and the third side portion Sp3 aredisconnected from each other. Optionally, the second edge electrodeblock EB2 and the second main portion Mp2 have a same shape; and thefirst residual electrode block RB1 and the third side portion Sp3 have asame shape. FIG. 12 illustrates boundaries of respective portions ofelectrodes in FIG. 11 . FIG. 13 illustrates external electrode edges ofrespective portions of electrodes in FIG. 11 . As shown in FIG. 11 toFIG. 13 , external electrode edges of the second edge electrode blockEB2 other than a portion along the second edge Ed2 are identical toexternal electrode edges of the second main portion Mp2; and externalelectrode edges of the first residual electrode block RB1 other than aportion along the second edge Ed2 are identical to external electrodeedges of the third side portion Sp3.

Optionally, the third side portion Sp3 is at least a portion of aprotrusion of the respective one of plurality of non-edge firstelectrode blocks NEB1 (e.g., an upper protrusion of the respective oneof plurality of non-edge first electrode blocks NEB1).

Referring to FIG. 9 and FIG. 10 again, in some embodiments, therespective row of the plurality of rows further includes a secondresidual electrode block RB2. The first residual electrode block RB1,the second edge electrode block EB2, and the second residual electrodeblock RB2 are sequentially arranged along the second edge Ed2.Optionally, the second edge Ed2 is an edge opposite to the first edgeEd1. Optionally, the respective row includes the first residualelectrode block RB1, the second edge electrode block EB2, and the secondresidual electrode block RB2 along the second edge Ed2 (on the leftside), the plurality of non-edge electrode blocks NEB in the middle ofthe row, and the first edge electrode block EB1 along the first edge Ed1(on the right side). The plurality of non-edge electrode blocks NEB inthe middle connect the first edge electrode block EB1 and the secondedge electrode block EB2 together.

Referring to FIG. 9 and FIG. 10 , in some embodiments, the firstresidual electrode block RB1, the second edge electrode block EB2, andthe second residual electrode block RB2 are respectively directlyconnected to the respective one of the plurality of first touch signallines SL1, while the first residual electrode block RB1 is isolated fromelectrode blocks of any adjacent row of the plurality of rows, and thesecond residual electrode block RB2 is isolated from electrode blocks ofany adjacent row of the plurality of rows.

Referring to FIG. 10 , in some embodiments, the respective one of theplurality of first touch signal lines SL1 includes a first branch lineBl1, a second branch line Bl2, and a third branch line Bl3 electricallyconnected in parallel (e.g., connected to a main line of the respectiveone of the plurality of first touch signal lines SL1). The second edgeelectrode block EB2 is directly connected to the first branch line Bl1,the first residual electrode block RB1 is directly connected to thesecond branch line Bl2, and the second residual electrode block RB2directly connected to the third branch line Bl3.

Referring to FIG. 11 to FIG. 13 , the first residual electrode block RB1is isolated from electrode blocks of any adjacent row of the pluralityof rows, the second residual electrode block RB2 is isolated fromelectrode blocks of any adjacent row of the plurality of rows. Referringto FIG. 11 , the first residual electrode block RB1 is also isolatedfrom the second edge electrode block EB2, and the second residualelectrode block RB2 is also isolated from the second edge electrodeblock EB2. The first residual electrode block RB1 and the second edgeelectrode block EB2 are disconnected from each other, the secondresidual electrode block RB2 and the second edge electrode block EB2 aredisconnected from each other, because they are present along the secondedge Ed2 of the touch control structure. In a respective one of theplurality of non-edge first electrode blocks NEB1 that is not along thesecond edge Ed2 or the first edge Ed1, protrusions of the electrodeblock are connected to a center portion. In one example, the second edgeelectrode block EB2 corresponds to a second main portion Mp2 of therespective one of the plurality of non-edge first electrode blocks NEB1,the first residual electrode block RB1 corresponds to a third sideportion Sp3 of the respective one of the plurality of non-edge firstelectrode blocks NEB1, and the second residual electrode block RB2corresponds to a fourth side portion Sp4 of the respective one of theplurality of non-edge first electrode blocks NEB1.

In some embodiments, the respective one of plurality of non-edge firstelectrode blocks NEB1 includes a second main portion Mp2, a third sideportion Sp3, and a fourth side portion Sp4 respectively along a secondvirtual line Vl2 parallel to the second edge Ed2. Along the secondvirtual line Vl2, boundaries of the second main portion Mp2 and thethird side portion Sp3 are disconnected from each other; and boundariesof the second main portion Mp2 and the fourth side portion Sp4 aredisconnected from each other. Optionally, the second edge electrodeblock EB2 and the second main portion Mp2 have a same shape; the firstresidual electrode block RB1 and the third side portion Sp3 have a sameshape, and the second residual electrode block RB2 and the fourth sideportion Sp4 have a same shape. As shown in FIG. 11 to FIG. 13 , externalelectrode edges of the second edge electrode block EB2 other than aportion along the second edge Ed2 are identical to external electrodeedges of the second main portion Mp2; external electrode edges of thefirst residual electrode block RB1 other than a portion along the secondedge Ed2 are identical to external electrode edges of the third sideportion Sp3; and external electrode edges of the second residualelectrode block RB2 other than a portion along the second edge Ed2 areidentical to external electrode edges of the fourth side portion Sp4.

Optionally, the third side portion Sp3 and the fourth side portion Sp4are respectively at least portions of protrusions of the respective oneof plurality of non-edge first electrode blocks NEB1 (e.g., upper andlower protrusions of the respective one of plurality of non-edge firstelectrode blocks NEB1).

Optionally, the second edge electrode block EB2 and the first edgeelectrode block EB1 are respectively a first electrode block and a lastelectrode block in a same row of the plurality of rows.

The presence of residual electrode blocks such as the first residualelectrode block RB1 and the second residual electrode block RB2 in thetouch control structure results in a reduced adjacent electrodeinterface between the plurality of first touch electrodes TE1 and theplurality of second touch electrodes TE2 along edges such as the secondedge Ed2. If not compensated, the reduced adjacent electrode interfaceresults in a reduced mutual capacitance along these edges, leading tonon-uniformity of mutual capacitance and touch control performance alongthese edges. The second edge Ed2 may be any edge of the touch controlstructure, for example, an edge along a lateral side of the touchcontrol structure, an edge along a corner of the touch controlstructure, or an edge along an internal window region of the touchcontrol structure. The internal window region may be a region in which ahole is punched through the touch control structure.

To enhance mutual capacitance uniformity and touch performancethroughout the touch control structure, branch lines may be formed torespectively electrically connect the first residual electrode block RB1to the second edge electrode block EB2, and electrically connect thesecond residual electrode block RB2 to the second edge electrode blockEB2. A substantially more uniform mutual capacitance and touch controlperformance along the edges can be achieved in the present touch controlstructure.

FIG. 14 is a partial view of a region of a touch control structure alonga first edge in some embodiments according to the present disclosure.Referring to FIG. 14 , the first edge electrode block EB1 in someembodiments includes a first main edge portion Me1 and a first side edgeportion Se1 respectively along the first edge Ed1. Electrode blocks ofthe plurality of first touch electrodes TE1 and the plurality of secondtouch electrodes TE2 are in a same layer, and respectively comprises amain portion MP and protrusion portions PP.

FIG. 15 is a zoom-in view of a fourth zoom-in region in FIG. 14 . Asshown in FIG. 14 and FIG. 15 , a respective one of the plurality ofedge-adjacent electrode blocks EAB includes a respective main portionRMP, a truncated protrusion TP, and multiple non-truncated protrusionsNTP. At least several multiple non-truncated protrusions NTP have asubstantially same shape and dimension, particularly non-truncatedprotrusions along a side of the respective main portion RMP and not at acorner of the main portion of the respective main portion RMP.Optionally, the truncated protrusion TP is also along a side of the mainportion.

The truncated protrusion TP extends from a respective main portion RMPof the respective one of the plurality of edge-adjacent electrode blocksEAB along a first direction D1. Respective ones of the multiplenon-truncated protrusions NTP along a same side of the respective mainportion RMP as the truncated protrusion TP also respectively extend fromthe respective main portion RMP along the first direction D1.

FIG. 16 is a schematic diagram illustrating a truncated protrusion insome embodiments according to the present disclosure. Referring to FIG.14 to FIG. 16 , in some embodiments, an edge of the truncated protrusionTP is spaced apart from the first edge Ed1 by a gap G. A gap part GP ofthe first side edge portion Se1 is in the gap G.

In some embodiments, an average width w1 of the truncated protrusion TPalong a direction perpendicular to the first direction D1 is less thanan average width w2 of a respective one of the multiple non-truncatedprotrusions NTP along the direction perpendicular to the first directionD1. Optionally, a width of the truncated protrusion TP graduallydecrease along the first direction D1.

In some embodiments, referring to FIG. 16 , the truncated protrusion hasa first side S1 and a second side S2. The second side S2 is closer tothe first edge Ed1 than the first side S1. The first side S1 extendsalong the first direction D1. The second side S2 has a quasi-arch shape.A distance d1 between the first side S1 and the second side S2 graduallydecreases along the first direction D1. The quasi-arch shape of thesecond side S2 has a first terminal T1 and a second terminal T2. Thesecond terminal T2 connects with a terminal of the first side S1. Adistance d2 along the first direction D1 between the first terminal T1and a boundary B between the truncated protrusion TP and the respectivemain portion RMP is 30% to 70% of a length L of the truncated protrusionTP along the first direction D1.

In some embodiments, the plurality of first touch electrodes TE1 and theplurality of second touch electrodes TE2 are a plurality of first meshelectrodes and a plurality of second mesh electrodes. Mesh electrodesincludes mesh lines typically have a line width in a range of 1 μm to 50μm. Thus, connecting adjacent mesh blocks through the mesh lines isparticularly difficult, and often resulting in poor connectivity. Thepresent disclosure adopts a novel and advantageous touch electrodedesign that obviate issues in related touch control structures.Optionally, the mesh lines have a line width in a range of 1 μm to 5 μm,e.g., 1 μm to 2 μm, 2 μm to 3 μm, 3 μm to 4 μm, or 4 μm to 5 μm.Optionally, the mesh lines have a line width of 3 μm. Referring to FIG.14 and FIG. 15 , in some embodiments, the electrode blocks of theplurality of first touch electrodes TE1 and the plurality of secondtouch electrodes TE2 are respectively hexagonal mesh electrode blocks.

In some embodiments, referring to FIG. 14 and FIG. 15 , a respectivefirst electrode block and a respective second electrode block adjacentto each other are insulated from each other by line breaks in the meshlines. FIG. 17 illustrates mesh line breaks along edges of a truncatedportion in some embodiments according to the present disclosure.Referring to FIG. 17 , the first side S1 and the second side S2 arerespectively formed by virtually connected line breaks of the truncatedprotrusion TP. FIG. 18 illustrates mesh line breaks along edges of atruncated portion in some embodiments according to the presentdisclosure. Referring to FIG. 18 , a respective one of the line breaksis a break in middle of a mesh line. As shown in FIG. 14 to FIG. 16 ,the gap G is between the first main edge portion Me1 and a protrusion ofthe first edge electrode block EB1. The gap part GP of the first sideedge portion Se1 is in the gap G includes at least one hexagonal mesh.

FIG. 20 is a zoom-in view of a fourth zoom-in region in FIG. 14 . FIG.21 is a schematic diagram illustrating a truncated protrusion in someembodiments according to the present disclosure. FIG. 22 illustratesmesh line breaks along edges of a truncated portion in some embodimentsaccording to the present disclosure. Referring to FIG. 20 to FIG. 22 ,in some embodiments, the truncated protrusion has a first side S1 and asecond side S2. The second side S2 is closer to the first edge Ed1 thanthe first side S1. The first side S1 extends along the first directionD1. The second side S2 has an undulating shape. A distance d1 betweenthe first side S1 and the second side S2 gradually decreases along thefirst direction D1. The undulating shape of the second side S2 has afirst terminal T1 and a second terminal T2. The second terminal T2connects with a terminal of the first side S1. A distance d2 along thefirst direction D1 between the first terminal T1 and a boundary Bbetween the truncated protrusion TP and the respective main portion RMPis 30% to 70% of a length L of the truncated protrusion TP along thefirst direction D1.

Referring to FIG. 15 to FIG. 17 , and FIG. 20 to FIG. 22 , the truncatedprotrusion has a first side S1 and a second side S2. The second side S2is closer to the first edge Ed1 than the first side S1. The first sideS1 extends along the first direction D1. The second side S2 is a curvedside. A distance d1 between the first side S1 and the second side S2gradually decreases along the first direction D1. The curved side has afirst terminal T1 and a second terminal T2. The second terminal T2connects with a terminal of the first side S1. A distance d2 along thefirst direction D1 between the first terminal T1 and a boundary Bbetween the truncated protrusion TP and the respective main portion RMPis 30% to 70% of a length L of the truncated protrusion TP along thefirst direction D1.

FIG. 19 illustrates a first edge electrode block in some embodimentsaccording to the present disclosure. Referring to FIG. 19 and FIG. 16 ,the gap part GP of the first side edge portion Se1 in the gap G isbetween the first main edge portion Me1 and an edge protrusion EP of thefirst edge electrode block EB1, and electrically connected to the firstmain edge portion Me1 and the edge protrusion EP of the first edgeelectrode block EB1.

In some embodiments, and referring to FIG. 1 and FIG. 14 , secondelectrode blocks of the plurality of non-edge columns Cne and firstelectrode blocks other than the multiple first edge electrode blocksrespectively from the plurality of rows of the plurality of first touchelectrodes TE1 have a substantially same shape and dimension.Optionally, the average width w1 of the truncated protrusion TP is lessthan an average width of any one of protrusions in the second electrodeblocks of the plurality of non-edge columns or in the first electrodeblocks other than the multiple first edge electrode blocks respectivelyfrom the plurality of rows of the plurality of first touch electrodes,for example, less than w3 in FIG. 14 .

In another aspect, the present disclosure provides a display panelincluding the touch control structure described herein or fabricated bya method described herein, a plurality of display elements, and aplurality of thin film transistors for driving the plurality of displayelements. Optionally, the display elements includes a plurality of lightemitting diodes, for example, in an organic light emitting diode displaypanel. Optionally, the display elements include a liquid crystal layerin a plurality of subpixels, for example, in a liquid crystal displaypanel.

FIG. 23A is a plan view of a display panel in some embodiments accordingto the present disclosure. FIG. 23B is a cross-sectional view along anA-A′ line in FIG. 23A. FIG. 23C is a cross-sectional view along a B-B′line in FIG. 23A. Referring to FIGS. 23A to 23C, the display panel insome embodiments includes an array substrate AS and a counter substrateCS assembled together. In some embodiments, the display panel includesdisplay elements and thin film transistors. Optionally, the displayelements includes a plurality of light emitting diodes, for example, inan organic light emitting diode display panel. Optionally, the displayelements include a liquid crystal layer in a plurality of subpixels, forexample, in a liquid crystal display panel. Referring to FIGS. 23B to23C, in some embodiments, the array substrate AS includes a basesubstrate BS, a plurality of thin film transistors TFT on the basesubstrate BS, and a plurality of light emitting elements LE on the basesubstrate BS and respectively connected to the plurality of thin filmtransistors TFT.

In some embodiments, the array substrate AS further includes anencapsulating layer EN encapsulating the plurality of light emittingelements LE. In some embodiments, the counter substrate CS includes abuffer layer BUF and a touch insulating layer TI on the buffer layerBUF. The touch control structure further includes a plurality of touchelectrode bridges EB. The touch insulating layer TI is between theplurality of touch electrode bridges EB, and the electrode blocks of theplurality of first touch electrodes TE1 and the plurality of secondtouch electrodes TE2. The plurality of touch electrode bridges EBrespectively extend through vias Vb in the touch insulating layer TI torespectively connect adjacent second electrode blocks in a respectivecolumn of the plurality of column of the plurality of second touchelectrodes TE2.

FIG. 24 is a cross sectional view of a display panel in some embodimentsaccording to the present disclosure. Referring to FIG. 24 , in thedisplay region, the display panel includes a base substrate BS, aplurality of thin film transistors TFT on the base substrate BS, apassivation layer PVX on a side of the plurality of thin filmtransistors TFT away from the base substrate BS, a first planarizationlayer PLN1 on side of the passivation layer PVX away from the basesubstrate BS, a relay electrode RE on side of the first planarizationlayer PLN1 away from the passivation layer PVX, a second planarizationlayer PLN2 on a side of the relay electrode RE away from the firstplanarization layer PLN1, a pixel definition layer PDL on a side of thesecond planarization layer PLN2 away from the first planarization layerPLN1 and defining subpixel apertures, an anode AD on a side of thesecond planarization layer PLN2 away from the first planarization layerPLN1, a light emitting layer EL on a side of the anode AD away from thesecond planarization layer PLN2, a cathode CD on a side of the lightemitting layer EL away from the anode AD, a first inorganicencapsulating layer CVD1 on a side of the cathode CD away from lightemitting layer EL, an organic encapsulating layer IJP on a side of thefirst inorganic encapsulating layer CVD1 away from the cathode CD, asecond inorganic encapsulating layer CVD2 on a side of the organicencapsulating layer IJP away from the first inorganic encapsulatinglayer CVD1, a buffer layer BUF on a side of the second inorganicencapsulating layer CVD2 away from the organic encapsulating layer IJP,a touch insulating layer TI on a side of the buffer layer BUF away fromthe second inorganic encapsulating layer CVD2, touch electrodes (e.g.,the plurality of first touch electrodes TE1 and the plurality of secondtouch electrodes TE2 as shown in FIG. 24 ) on a side of the touchinsulating layer TI away from the buffer layer BUF, and an overcoatlayer OC on a side of the touch electrodes away from the touchinsulating layer TI.

In another aspect, the present disclosure provides a display apparatusincluding a display panel described herein or fabricated by a methoddescribed herein, and one or more integrated circuits connected to thedisplay panel. Examples of appropriate display apparatuses include, butare not limited to, an electronic paper, a mobile phone, a tabletcomputer, a television, a monitor, a notebook computer, a digital album,a GPS, etc. Optionally, the display apparatus is an organic lightemitting diode display apparatus. Optionally, the display apparatus is aliquid crystal display apparatus.

In another aspect, the present disclosure provides a method offabricating a touch control structure. In some embodiments, the methodincludes forming a plurality of first touch electrodes arranged in aplurality of rows and a plurality of second touch electrodes arranged ina plurality of columns. Optionally, the plurality of rows of theplurality of first touch electrodes respectively extend to a first edgeof the touch control structure. Optionally, forming a respective row ofthe plurality of rows includes forming a plurality of non-edge firstelectrode blocks and forming a first edge electrode block, the firstedge electrode block being formed along the first edge. Optionally, theplurality of non-edge first electrode blocks have a same shape.Optionally, the first edge electrode block comprises a first main edgeportion and a first side edge portion respectively along the first edge.Optionally, a respective one of plurality of non-edge first electrodeblocks comprises a first main portion and a first side portionrespectively along a first virtual line parallel to the first edge.Optionally, along the first virtual line, boundaries of the first mainportion and the first side portion are disconnected from each other.Optionally, the first main edge portion and the first side edge portionare directly physically connected to each other. Optionally, the firstmain edge portion and the first main portion have a same shape.Optionally, external electrode edges of the first main edge portionother than a portion along the first edge are identical to externalelectrode edges of the first main portion. Optionally, the first sideedge portion and the first side portion have at least partiallydifferent shapes and at least partially different external contours.

The foregoing description of the embodiments of the invention has beenpresented for purposes of illustration and description. It is notintended to be exhaustive or to limit the invention to the precise formor to exemplary embodiments disclosed. Accordingly, the foregoingdescription should be regarded as illustrative rather than restrictive.Obviously, many modifications and variations will be apparent topractitioners skilled in this art. The embodiments are chosen anddescribed in order to explain the principles of the invention and itsbest mode practical application, thereby to enable persons skilled inthe art to understand the invention for various embodiments and withvarious modifications as are suited to the particular use orimplementation contemplated. It is intended that the scope of theinvention be defined by the claims appended hereto and their equivalentsin which all terms are meant in their broadest reasonable sense unlessotherwise indicated. Therefore, the term “the invention”, “the presentinvention” or the like does not necessarily limit the claim scope to aspecific embodiment, and the reference to exemplary embodiments of theinvention does not imply a limitation on the invention, and no suchlimitation is to be inferred. The invention is limited only by thespirit and scope of the appended claims. Moreover, these claims mayrefer to use “first”, “second”, etc. following with noun or element.Such terms should be understood as a nomenclature and should not beconstrued as giving the limitation on the number of the elementsmodified by such nomenclature unless specific number has been given. Anyadvantages and benefits described may not apply to all embodiments ofthe invention. It should be appreciated that variations may be made inthe embodiments described by persons skilled in the art withoutdeparting from the scope of the present invention as defined by thefollowing claims. Moreover, no element and component in the presentdisclosure is intended to be dedicated to the public regardless ofwhether the element or component is explicitly recited in the followingclaims.

What is claimed is:
 1. A touch control structure, comprising a pluralityof first touch electrodes arranged in a plurality of rows and aplurality of second touch electrodes arranged in a plurality of columns;wherein the plurality of rows of the plurality of first touch electrodesrespectively extend to a first edge of the touch control structure; arespective row of the plurality of rows comprises a plurality ofnon-edge first electrode blocks and a first edge electrode block, thefirst edge electrode block being along the first edge; the plurality ofnon-edge first electrode blocks have a same shape; electrode blocks ofthe plurality of first touch electrodes and the plurality of secondtouch electrodes are in a same layer, and respectively comprises a mainportion and protrusion portions; the plurality of column of theplurality of second touch electrodes comprise a plurality of non-edgecolumns and an edge-adjacent column, the edge-adjacent column beingdirectly adjacent to multiple first edge electrode blocks respectivelyfrom the plurality of rows of the plurality of first touch electrodes;the edge-adjacent column comprises a plurality of edge-adjacentelectrode blocks electrically connected; a respective one of theplurality of edge-adjacent electrode blocks comprises a truncatedprotrusion, and multiple non-truncated protrusion; an edge of thetruncated protrusion is spaced apart from the first edge by a gap; a gappart of the first edge electrode block is in the gap; the truncatedprotrusion extends from a respective main portion of the respective oneof the plurality of edge-adjacent electrode blocks along a firstdirection; and an average width of the truncated protrusion along adirection perpendicular to the first direction is less than an averagewidth of a respective one of the multiple non-truncated protrusionsalong the direction perpendicular to the first direction.
 2. The touchcontrol structure of claim 1, wherein a width along a directionperpendicular to the first direction of at least a portion of thetruncated protrusion gradually decrease along the first direction. 3.The touch control structure of claim 1, wherein the truncated protrusionhas a first side and a second side; the second side is closer to thefirst edge than the first side; the first side extends along the firstdirection; the second side is a curved side; and a distance between thefirst side and the second side gradually decreases along the firstdirection.
 4. The touch control structure of claim 3, wherein the curvedside of the second side has a first terminal and a second terminal; thesecond terminal connects with a terminal of the first side; a distancealong the first direction between the first terminal and a boundarybetween the truncated protrusion and the respective main portion is 30%to 70% of a length of the truncated protrusion along the firstdirection.
 5. The touch control structure of claim 3, wherein theelectrode blocks of the plurality of first touch electrodes and theplurality of second touch electrodes are respectively hexagonal meshelectrode blocks; a respective first electrode block and a respectivesecond electrode block adjacent to each other are insulated from eachother by line breaks in mesh lines; the first side and the second sideare respectively formed by virtually connected line breaks of thetruncated protrusion.
 6. The touch control structure of claim 5, whereina respective one of the line breaks is a break in middle of a mesh line.7. The touch control structure of claim 1, wherein the gap part in thegap comprises at least one mesh along a row direction.
 8. The touchcontrol structure of claim 1, wherein the first edge electrode blockcomprises a first main edge portion and a first side edge portionrespectively along the first edge; and the gap part of the first sideedge portion in the gap is between the first main edge portion and anedge protrusion of the first edge electrode block, and electricallyconnected to the first main edge portion and the edge protrusion of thefirst edge electrode block.
 9. The touch control structure of claim 1,wherein second electrode blocks of the plurality of non-edge columns andfirst electrode blocks other than the multiple first edge electrodeblocks respectively from the plurality of rows of the plurality of firsttouch electrodes have a substantially same shape and dimension; and theaverage width of the truncated protrusion is less than an average widthof any one of protrusions in the second electrode blocks of theplurality of non-edge columns or in the first electrode blocks otherthan the multiple first edge electrode blocks respectively from theplurality of rows of the plurality of first touch electrodes.
 10. Thetouch control structure of claim 1, further comprising a plurality oftouch electrode bridges and an insulating layer between the plurality oftouch electrode bridges, and the electrode blocks of the plurality offirst touch electrodes and the plurality of second touch electrodes; theplurality of touch electrode bridges respectively extend through vias inthe insulating layer to respectively connect adjacent second electrodeblocks in a respective column of the plurality of columns of theplurality of second touch electrodes.
 11. The touch control structure ofclaim 1, wherein a respective one of plurality of non-edge firstelectrode blocks comprises a first main portion and a first side portionrespectively along a first virtual line parallel to the first edge;along the first virtual line, boundaries of the first main portion andthe first side portion are disconnected from each other; the first edgeelectrode block comprises a first main edge portion and a first sideedge portion respectively along the first edge; the first main edgeportion and the first side edge portion are directly physicallyconnected to each other; the first main edge portion and the first mainportion have a same shape; external electrode edges of the first mainedge portion other than a portion along the first edge are identical toexternal electrode edges of the first main portion; and the first sideedge portion and the first side portion have at least partiallydifferent shapes and at least partially different external contours. 12.The touch control structure of claim 11, wherein the first side edgeportion comprises a first outer sub-portion and a first bridgesub-portion respectively along the first edge, the first bridgesub-portion directly physically connecting the first outer sub-portionto the first main edge portion; the first side portion comprises a firstsub-portion and a second sub-portion along the first virtual line;external electrode edges of the first outer sub-portion other than aportion along the first edge are identical to external electrode edgesof the first sub-portion; the first sub-portion and the first outersub-portion have a same shape; the first bridge sub-portion and thesecond sub-portion have different shapes and different externalcontours; and along the first virtual line, boundaries of the secondsub-portion and the first main portion are disconnected from each other.13. The touch control structure of claim 12, wherein the first mainportion and the first main edge portion have a first translationalsymmetry; the first outer sub-portion and the first sub-portion have asecond translational symmetry; and the first translational symmetry andthe second translational symmetry are the same.
 14. The touch controlstructure of claim 11, wherein the first side portion is at least aportion of a protrusion of the respective one of the plurality ofnon-edge first electrode blocks; and the first side edge portion is aprotrusion of the first edge electrode block.
 15. The touch controlstructure of claim 11, wherein the first edge electrode block furthercomprises a second side edge portion; the first side edge portion, thefirst main edge portion, and second side edge portion are sequentiallyarranged along the first edge; the respective one of the plurality ofnon-edge first electrode blocks further comprises a second side portion;the first side portion, the first main portion, and the second sideportion are sequentially arranged along the first virtual line; alongthe first virtual line, boundaries of the first main portion and thesecond side portion are disconnected from each other; the first mainedge portion and the second side edge portion are directly physicallyconnected to each other; and the second side edge portion and the secondside portion have at least partially different shapes and at leastpartially different external contours.
 16. The touch control structureof claim 15, wherein the second side edge portion comprises a secondouter sub-portion and a second bridge sub-portion respectively along thefirst edge, the second bridge sub-portion directly physically connectingthe second outer sub-portion to the first main edge portion; the secondside portion comprises a third sub-portion and a fourth sub-portionalong the first virtual line; external electrode edges of the secondouter sub-portion other than a portion along the first edge areidentical to external electrode edges of the third sub-portion; thethird sub-portion and the second outer sub-portion have a same shape;the second bridge sub-portion and the fourth sub-portion have differentshapes and different external contours; and along the first virtualline, boundaries of the fourth sub-portion and the first main portionare disconnected from each other.
 17. The touch control structure ofclaim 16, wherein the first main portion and the first main edge portionhave a first translational symmetry; the first outer sub-portion and thefirst sub-portion have a second translational symmetry; the second outersub-portion and the third sub-portion have a third translationalsymmetry; and the first translational symmetry, the second translationalsymmetry, and the third translational symmetry are the same.
 18. Thetouch control structure of claim 15, wherein the first side portion andthe second side portion are respectively at least portions ofprotrusions of the respective one of the plurality of non-edge firstelectrode blocks; and the first side edge portion and the second sideedge portion are respectively protrusions of the first edge electrodeblock.
 19. The touch control structure of claim 11, wherein each of themultiple first edge electrode blocks is along the first edge; arespective one of the plurality of non-edge columns comprises aplurality of non-edge second electrode blocks electrically connected;and external electrode edges of a respective one of the plurality ofedge-adjacent electrode blocks are identical to external electrode edgesof a respective one of the plurality of non-edge second electrode blocksexcept for a first portion directly adjacent to the first side edgeportion in an adjacent row of the plurality of rows.
 20. A displayapparatus, comprising the touch control structure of claim 1, a displaypanel, and an integrated circuit connected to the display panel.